Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/16564
Title: Magnetic field assisted enhancement in number density of metastable krypton (Kr*) atoms in a krypton atomic beam
Authors: Singh, S
Singh, Vivek
Tiwari, V B
Mishra, S R
Rawat, H S
Keywords: Metastable Kr atoms;Noble gas atoms;RF-discharge
Issue Date: Apr-2013
Publisher: NISCAIR-CSIR, India
Abstract: The results on magnetic field assisted enhancement in number density of metastable krypton (Kr*) atoms in an atomic beam generated from radio frequency (RF) discharge plasma of krypton gas, have been presented in the present paper. We observed that by applying a low external magnetic field perpendicular to the beam path after the discharge tube, the number density of Kr* atoms in the atomic beam gets enhanced. At ~1 Gauss of applied magnetic field, we observed nearly two-fold enhancement from ~1.5106 to ~3106 cm-3 in number density of Kr* atoms in the atomic beam. This enhancement in number density is attributed to applied field assisted alignment of the path of electrons and Kr-ions along the atomic beam direction. The alignment of electrons and Kr-ions along the atomic beam direction results in increase in number density of Kr* atoms due to occurrence of more electron-ion recombination events in the beam path.
Page(s): 230-234
URI: http://hdl.handle.net/123456789/16564
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.51(04) [April 2013]

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